A new attribute has been added to all numeric properties: step value. It
determines the value of a single increment/decrement that numeric
property widgets use when their associated properties are modified using
sliders or spin boxes (users are still able to type any valid property
value in text edits).

Numerous processors and pipelines had to be updated to work with the
changed NumericProperty interface. However, choosing a well-suited step
value for each property can make it easier for users to modify the
property — using one step value for all properties leads to cases where
it is either too small, causing users to go through property values
which don't cause any visible change, or too big, making it difficult to
quickly determine the right property value.

some minor fixes

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@504 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@489 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

Revised InvalidationLevel concept: InvalidationLevels now directly belong to an AbstractProcessor and are considered to be thread-safe. Furthermore the different levels now really act as single flags that are set (invalid) or unset (valid) individually.

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@464 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

* Introducing SimpleJobProcessor for dispatching non-OpenGL-related jobs

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@445 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@386 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@338 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@335 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@326 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@290 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

 * introducing ProxyGeometryGenerator
 * updated DVRVis
 * updated TumVisApplication to check for OpenGL and GLSL 3.3

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@276 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

 * added update_legal_header.py script for updating the legal header in all code files of the project
 * ran the file => all TUMVis source files now contain the legal header

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@231 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

* added DataHandle::removeData
* include/forward declaration clean-up

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@208 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

 + added PropertyWidgetFactory
 + added AbstractPropertyWidget and StringPropertyWidget
 * replaced own observer implementation of AbstractPipeline and AbstractProperty with sigslot
 * changed PropertyCollection (aggregation) to HasPropertyCollection (inheritance)

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@207 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@190 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

 * fixed memory leak in ImageDataConverter
 * added usage of Shader::IgnoreUniformLocationError where reasonable
 * fixed shaders

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@189 bb408c1c-ae56-11e1-83d9-df6b3e0c105e